Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B31460.1 |
Aquifer recharge, depletion, and connectivity: Inferences from GRACE, land surface models, and geochemical and geophysical data | |
Mohamed, Ahmed1,2; Sultan, Mohamed1; Ahmed, Mohamed1,3; Yan, Eugene4; Ahmed, Ezzat2 | |
2017-05-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2017 |
卷号 | 129 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Egypt |
英文摘要 | Data from the Gravity Recovery and Climate Experiment (GRACE) and outputs of the CLM4.5 model were used to estimate recharge and depletion rates for large aquifers, investigate the connectivity of an aquifer's subbasins, and identify barriers and preferred pathways for groundwater flow within an aquifer system. The Nubian Sandstone Aquifer System and its subbasins (Dakhla, Northern Sudan Platform, and Kufra) in northeast Africa were used for demonstration purposes, and findings were tested and verified against geological, geophysical, remote sensing, geochronologic, and geochemical data. There are four major findings. (1) The average annual precipitation data over recharge areas in the southern Kufra section and the Northern Sudan Platform subbasin were estimated at 54.8 km3, and 32.8 km3, respectively, and knowing the annual extraction rates over these two areas (similar to 0.40 +/- 0.20 km(3)), recharge rates were estimated at 0.78 +/- 0.49 km(3)/yr and 1.44 +/- 0.42 km(3)/yr, respectively. (2) GRACEderived groundwater depletion rates over the Dakhla subbasin and the Northern Kufra section were estimated at 4.44 +/- 0.42 km(3)/yr and 0.48 +/- 0.32 km(3)/yr, respectively. (3) The observed depletion in the southern parts of the Dakhla subbasin is apparently caused by the presence of the east- west- trending Uweinat-Aswan basement uplift, which impedes the south-to-north groundwater flow and hence reduces replenishment from recharge areas in the south. (4) A major northeast- southwest- trending shear zone (Pelusium shear system) is apparently providing a preferred groundwater flow pathway from the Kufra to the Dakhla subbasin. Our inte-grated approach provides a replicable and cost-effective model for better understanding of the hydrogeologic setting of large aquifers worldwide and for optimum management of these groundwater resources. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403309300002 |
WOS关键词 | NUBIAN SANDSTONE AQUIFER ; NORTHERN RED-SEA ; GROUNDWATER-FLOW ; WESTERN DESERT ; WATER ; PRECIPITATION ; VARIABILITY ; DISCHARGE ; GRAVITY ; BASINS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24648 |
专题 | 地球科学 |
作者单位 | 1.Western Michigan Univ, Dept Geosci, Kalamazoo, MI 49008 USA; 2.Assiut Univ, Geol Dept, Fac Sci, Assiut 71516, Egypt; 3.Suez Canal Univ, Geol Dept, Fac Sci, Ismailia 41522, Egypt; 4.Argonne Natl Lab, Environm Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA |
推荐引用方式 GB/T 7714 | Mohamed, Ahmed,Sultan, Mohamed,Ahmed, Mohamed,et al. Aquifer recharge, depletion, and connectivity: Inferences from GRACE, land surface models, and geochemical and geophysical data[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2017,129. |
APA | Mohamed, Ahmed,Sultan, Mohamed,Ahmed, Mohamed,Yan, Eugene,&Ahmed, Ezzat.(2017).Aquifer recharge, depletion, and connectivity: Inferences from GRACE, land surface models, and geochemical and geophysical data.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,129. |
MLA | Mohamed, Ahmed,et al."Aquifer recharge, depletion, and connectivity: Inferences from GRACE, land surface models, and geochemical and geophysical data".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 129(2017). |
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